<HTML><HEAD><TITLE>ImplementedBySubclassError</TITLE></HEAD>
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<!#CLASSDEF
ImplementedBySubclassError Error
#ENDCLASSDEF>
<H1>ImplementedBySubclassError</H1>

<P>Raised by base class methods that are expected to be implemented by derived
classes.  
<H2>Base Classes</H2>
<UL>
<LI>Error
</UL>
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